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authorThinh Nguyen <thinh.nguyen@synopsys.com>2019-02-06 10:49:26 -0800
committerFelipe Balbi <felipe.balbi@linux.intel.com>2019-02-07 13:17:19 +0200
commit9c7ebc99b382a158fd2594adbfc204e526b16e08 (patch)
treecc7d14ff191351cf2abe7b9294ab8595a4d1f49a /drivers/usb/dwc3
parentbdcc03cef0fd8abc6eaeec6ac47e54ae8f8c625f (diff)
usb: dwc3: haps: Workaround matching VID PID
i.MX6QP and i.MX7D platform use a PCIe controller with the same VID and PID as this USB controller. The system may incorrectly match this driver to that PCIe controller. To workaround this, specifically use class type USB with PCI device ID to prevent incorrect driver matching. Signed-off-by: Thinh Nguyen <thinhn@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/dwc3')
-rw-r--r--drivers/usb/dwc3/dwc3-haps.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/dwc3-haps.c b/drivers/usb/dwc3/dwc3-haps.c
index 02d57d98ef9b..3cecbf169452 100644
--- a/drivers/usb/dwc3/dwc3-haps.c
+++ b/drivers/usb/dwc3/dwc3-haps.c
@@ -106,6 +106,15 @@ static const struct pci_device_id dwc3_haps_id_table[] = {
{
PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS,
PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3),
+ /*
+ * i.MX6QP and i.MX7D platform use a PCIe controller with the
+ * same VID and PID as this USB controller. The system may
+ * incorrectly match this driver to that PCIe controller. To
+ * workaround this, specifically use class type USB to prevent
+ * incorrect driver matching.
+ */
+ .class = (PCI_CLASS_SERIAL_USB << 8),
+ .class_mask = 0xffff00,
},
{
PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS,